Episode 15

Keith David

Mongul (voice)

Miguel Ferrer

Vandal Savage / Tribune (voice)

Crispin Freeman

Arsenal / Galet Dasim (voice)

Phil LaMarr

Green Beetle / Ambassador / Aquaman (voice)

Kevin Michael Richardson

Guardian / Green Lantern / Martian Manhunter (voice)

Alyson Stoner

Batgirl (voice)

Masasa Moyo

Scientist / Bumblebee / Cat Grant (voice)

Michael T. Weiss

Captain Atom (voice)